Concrete Sensor Comparison for Precast Plants: 7 Systems

Short answer: Choose the system that backs your 12 to 24 hour strip and detension call with three things: a sensor in the bed, match-cured companion cylinders and plant QC records for the same pour. Sensytec and EXACT Technology offer all three; EXACT also offers active curing control, which Sensytec does not. Giatec SmartRock, Concrete Sensors, Inc. (formerly sold by Hilti), Converge, COMMAND Center and Brickeye LumiCon monitor concrete in place, and our September 2026 review did not confirm a match-curing system from any of them.

Published by Sensytec. Updated November 10, 2026. Competitor details come from our one-to-one comparison pages, which cite the vendor pages reviewed September 10 and 11, 2026. Vendor pages describe advertised capabilities, not independent tests. Confirm the model, installation and quote with each supplier.

What matters in a precast plant

Release and detension timing. Transfer strength decides when you can detension. Plants that pair an in-bed maturity estimate with a match-cured cylinder often release within 12 to 24 hours, not on a fixed overnight rule. Read the transfer strength guide.
Bed turnover. A bed that waits after the concrete is ready costs a production cycle. In the NAPCO demo, the model flagged the 3,500 psi threshold at 7h 33m on one Double-T pour, ahead of the plant's usual 10 to 11 hour cylinder schedule. One pour, not a guarantee.
Match-cured cylinders. The sensor tells you when to test. Most specs still require a match-cured cylinder break to confirm transfer strength. On Day 2 of the SensyCure trial, cylinders averaged a 0.79°F gap from the bed (5.4°F maximum).
Audit records. Keep one record per pour that links mix, temperature history, breaks, inspections and NCRs for PCI, NPCA or state DOT audits. Software organizes the evidence; your QC team owns release and certification.

Seven systems side by side

On smaller screens, scroll across the table to compare all columns.

Advertised capabilities from vendor pages reviewed September 10 and 11, 2026. "Not confirmed" means our review did not establish it, not that the supplier cannot provide it.
System	Sensor type	Reusable or single-use	What it measures	How data leaves the sensor	Match-cure option	Plant QC software
Sensytec SensyCast, SensyRoc II, SensyCure, SensyHub QC	SensyCast wireless transmitter with replaceable probes; SensyRoc II Bluetooth sensor.	Reusable. The SensyCast transmitter is rechargeable; SensyRoc II has a reusable body. Probes are replaceable; confirm recovery for your element.	Temperature and electrical resistivity. Strength estimated from a calibrated maturity relationship.	SensyCast: LoRa to a gateway, up to 1 mile (1.6 km) line of sight, then SensyHub. SensyRoc II: Bluetooth to a phone app.	Yes. SensyCure follows bed temperature in companion cylinders.	Yes. SensyHub QC: inspections, batch and break logs, NCRs and audit exports for PCI, NPCA and state DOT programs.
Brickeye LumiCon	LumiSense embedded sensor cable connected to a LumiNode transmitter.	The sensor cable is embedded. Ask which parts are recovered.	Temperature, temperature differentials, maturity and strength estimates.	LumiNode transmitter for remote monitoring. Confirm the node and gateway setup for the site.	Not confirmed.	LumiCon reports: custom PDFs, Excel downloads, concrete profiles and temperature alarms. Plant QC records not confirmed.
COMMAND Center	Sensors with leads to collection hardware; readings stored on the sensor.	Not confirmed.	Temperature, with Nurse-Saul or Arrhenius maturity. Resistivity not established.	SRM reader with Bluetooth, AutoCollector for remote collection over cellular, or wired download.	Not confirmed.	Concrete 4 Web with alerts and PDF reports; cloud and web access without a license fee. Plant QC records not confirmed.
Concrete Sensors, Inc. formerly sold by Hilti	Bluetooth and long-range sensors, including CS T2; standard and cabled options.	Not confirmed. Ask about retrieval for the quoted model.	Temperature and maturity.	Bluetooth with a person onsite, or CS T2 to a CS Gateway for automatic remote collection. Gateway rental offered.	Not confirmed.	Not confirmed. Lab calibration services offered for the mix.
Converge	Signal and Signal Long Range (embedded); Helix node with Thermal Tail probes.	Depends on model. Signal Long Range is single-use; Helix has a reusable node with replaceable Thermal Tails.	Temperature, with strength estimates.	Signal: Bluetooth to a phone. Signal Long Range: up to 300 m (1,000 ft) at 100 mm (4 in) embedment. Helix: up to 1.5 miles in open space. Data in ConcreteDNA CURE.	Not confirmed. CURE is monitoring and prediction software.	Data Hub (batch and QA records, BS EN 206 analysis) and FieldAtlas (element tracking). Both invited early-access requests when reviewed.
EXACT Technology	xMonitor with Flex Logger and Flex Embeddable Logger options.	Depends on model. The Flex Embeddable Logger is sacrificial.	Temperature, optional humidity, maturity.	Monitoring data feeds EXACT Portal. Confirm the connection hardware for the quoted logger.	Yes. xMatch follows xMonitor temperature data for companion cylinders.	Yes. xTrack: scheduling, inspections, dimensional checks, element tracking, custom forms and reporting.
Giatec SmartRock	Embedded wireless sensor: standard SmartRock and SmartRock Long Range.	Single-use: designed for permanent embedment.	Temperature, with maturity-based strength estimates.	Standard: Bluetooth to a phone, up to 40 ft (12 m) embedded, or SmartHub for remote collection. Long Range: SmartHub Long Range, up to 1,000 ft (300 m) from 2 in (5 cm) embedment, over LTE or Wi-Fi.	Not confirmed.	SmartRock app and SmartRock Web for sensor data. Plant QC records not confirmed.

Best fit by system

Sensytec: Precast and prestressed plants that want bed monitoring, match-cured cylinders and QC records tied to the same pour. Not a fit if you need the system to control curing heat.
Brickeye LumiCon: Teams also buying Brickeye's water mitigation and environmental risk services. LumiCon lists precast among its applications.
COMMAND Center: Teams that want cloud and web access without a software license fee, or a wired download path. Hardware is still a cost.
Concrete Sensors, Inc.: Current Hilti sensor users with a working setup. Staying is a valid option, and the supplier offers lab calibration for the mix.
Converge: Teams that want element tracking from factory to site (FieldAtlas) or BS EN 206 compliance analysis (Data Hub). Both pages invited early-access requests when reviewed.
EXACT Technology: Plants that want active curing control (steam, radiant or direct-to-form electric heating) on the same platform as monitoring, match curing and QC. Sensytec does not offer this.
Giatec SmartRock: Pours where recovering hardware is impractical, since SmartRock is designed for permanent embedment, and crews already trained on it.

One-to-one comparisons

Each page compares Sensytec with one system in more detail and lists the vendor sources behind it.

Sensytec vs Brickeye LumiCon: sensor installation, reporting and broader site services.
Sensytec vs COMMAND Center: collection hardware, maturity methods and license scope.
Sensytec vs Hilti Concrete Sensors: the move to Concrete Sensors, Inc. and what to check before switching.
Sensytec vs Converge: Signal, Helix and ConcreteDNA software.
Sensytec vs EXACT Technology: monitoring, match curing, active curing control and plant QC.
Sensytec vs Giatec SmartRock: standard and Long Range models, gateways and range conditions.

Frequently asked questions

What is the best concrete sensor system for a precast plant?

The one that supports your release decision on the same pour: in-bed monitoring, match-cured companion cylinders and plant QC records. Sensytec and EXACT Technology offer all three, and EXACT adds active curing control. Run a trial on your own bed, mix and release criteria before choosing.

Which concrete sensors are reusable?

It depends on the model. Sensytec SensyCast has a rechargeable transmitter and SensyRoc II has a reusable body, both with replaceable probes. Converge Helix has a reusable node with replaceable Thermal Tails. Giatec SmartRock is designed for permanent embedment, Converge Signal Long Range is single-use, and the EXACT Flex Embeddable Logger is sacrificial.

Do I still need match-cured cylinders if I use maturity sensors?

Usually, for prestressed release. The sensor gives a continuous strength estimate that tells you when to test. Most specs still require a match-cured cylinder break to confirm transfer strength before release. Check your project and plant requirements.

Which systems control curing heat, not just monitor it?

EXACT Technology's xControl offers steam or radiant curing control and direct-to-form electric heating. Sensytec does not control bed heating; SensyCure conditions the companion cylinders only. Our review did not confirm curing control for the other systems here.

How far do wireless concrete sensors transmit?

Vendors publish range under different conditions. Standard SmartRock: up to 40 ft (12 m) embedded. SmartRock Long Range: up to 1,000 ft (300 m) to SmartHub from 2 in (5 cm) embedment. Converge Signal Long Range: up to 300 m (1,000 ft) at 100 mm (4 in) embedment. Converge Helix: up to 1.5 miles in open space. Sensytec SensyCast: up to 1 mile (1.6 km) line of sight. Test coverage at your own beds.

Is this comparison independent?

No. Sensytec wrote it. Competitor details come from vendor pages we reviewed in September 2026, cited on each one-to-one comparison page. Confirm the model, installation and quote with each supplier.

Sources and review scope

Competitor details come from the one-to-one pages above. Each lists the vendor pages reviewed September 10 or 11, 2026. Specifications and availability change. "Not confirmed" means our review did not establish it, not proof a supplier cannot provide it. This is a vendor-authored comparison, not an independent endorsement.

Test the fit on your own bed

Bring one bed schedule, your release strength and a cylinder record. We can scope a plant trial against the system you run today.

Plan a plant trial

Which concrete sensor system fits your precast plant?